diff --git a/src/Interpreters/convertFieldToType.cpp b/src/Interpreters/convertFieldToType.cpp
index d47f64cb1dc..5d124add0df 100644
--- a/src/Interpreters/convertFieldToType.cpp
+++ b/src/Interpreters/convertFieldToType.cpp
@@ -377,6 +377,11 @@ Field convertFieldToType(const Field & from_value, const IDataType & to_type, co
     else if (const auto * nullable_type = typeid_cast<const DataTypeNullable *>(&to_type))
     {
         const IDataType & nested_type = *nullable_type->getNestedType();
+
+        /// NULL remains NULL after any conversion.
+        if (WhichDataType(nested_type).isNothing())
+            return {};
+
         if (from_type_hint && from_type_hint->equals(nested_type))
             return from_value;
         return convertFieldToTypeImpl(from_value, nested_type, from_type_hint);
diff --git a/tests/queries/0_stateless/01774_tuple_null_in.reference b/tests/queries/0_stateless/01774_tuple_null_in.reference
new file mode 100644
index 00000000000..aa47d0d46d4
--- /dev/null
+++ b/tests/queries/0_stateless/01774_tuple_null_in.reference
@@ -0,0 +1,2 @@
+0
+0
diff --git a/tests/queries/0_stateless/01774_tuple_null_in.sql b/tests/queries/0_stateless/01774_tuple_null_in.sql
new file mode 100644
index 00000000000..c9dad49e8ed
--- /dev/null
+++ b/tests/queries/0_stateless/01774_tuple_null_in.sql
@@ -0,0 +1,2 @@
+SELECT (NULL, NULL) = (8, 0) OR (NULL, NULL) = (3, 2) OR (NULL, NULL) = (0, 0) OR (NULL, NULL) = (3, 1);
+SELECT (NULL, NULL) IN ((NULL, 0), (3, 1), (3, 2), (8, 0));